Max Roth 401k Contribution 2024 Married. The maximum amount you can contribute to a roth 401(k) for 2024 is $23,000 (if you're younger than age 50). Section 415 increases:beginning january 1, 2025, the annual benefit limit for defined benefit plans under irc section 415 (b) (1) (a) will increase to $280,000, up from.

The maximum amount you can contribute to a roth 401(k) for 2024 is $23,000 (if you’re younger than age 50). The contribution limit has increased to $23,500 in 2025, up from $23,000 in 2024.